https://doi.org/10.1051/epjconf/20159401031
First application of the 3D-MHB on dynamic compressive behavior of UHPC
1 DynaMat Laboratory, University of Applied Sciences of Southern Switzerland, 6952 Canobbio, Switzerland
2 Department of Structural, Geotechnical and Building Engineering – Politecnico di Torino, 10129 Torino, Italy
3 Dynalab-Impact Technologies, 21014 Laveno Mombello, Italy
a Corresponding author: ezio.cadoni@supsi.ch
Published online: 7 September 2015
In order to study the dynamic behaviour of material in confined conditions a new machine was conceived and called 3D-Modified Hopkinson Bar (3D-MHB). It is a Modified Hopkinson Bar apparatus designed to apply dynamic loading in materials having a tri-axial stress state. It consists of a pulse generator system (with pre-tensioned bar and brittle joint), 1 input bar, and 5 output bars. The first results obtained on Ultra High Performance Concrete in compression with three different mono-axial compression states are presented. The results show how the pre-stress states minimize the boundary condition and a more uniform response is obtained.
© Owned by the authors, published by EDP Sciences, 2015
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
